unicycle

n.单轮脚踏车

单轮车；独轮车；单轮自行车

名词

1. She amazed the crowd with her skill on the unicycle.
她以独轮车技艺让人羡煞旁观者。
2. He enjoys riding his unicycle in the park on weekends.
他喜欢周末在公园里骑他的单轮车。